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Finding the Third Proportional to 1,515.38 and 2,424.94

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Solution

The third proportional to 1,515.38 and 2,424.94 is: 3,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.38 : 2,424.94 = 2,424.94 : x
  2. Step 2: Convert to fraction form
    1,515.38/2,424.94 = 2,424.94/x
  3. Step 3: Cross multiply
    1,515.38x = 2,424.94 × 2,424.94
  4. Step 4: Simplify right side
    1,515.38x = 5,880,321.88
  5. Step 5: Solve for x
    x = 5,880,321.88/1,515.38
  6. Step 6: Final answer
    x = 3,880.44

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.